Chemistry GCSE
Mole
What Mole means in Chemistry GCSE, as defined for OCR.
Definitions of Mole
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
The unit for amount of substance. One mole contains Avogadro's number ($6.02 \times 10^{23}$) of particles.
The unit for amount of substance. One mole contains Avogadro's constant (6.02 x 10^23) of particles.
Topics that use Mole
- Topic C3: Chemical reactions (OCR GCSE)
- Topic C5: Monitoring and controlling chemical reactions (OCR GCSE)
Related terms
- Activation Energy
- Catalyst
- Closed System
- Dynamic Equilibrium
- Electrolyte
- Law of Conservation of Mass
- Strong Acid
- Atom Economy
Using Mole in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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